Method and apparatus for cutting paper sheets



M. E. 'roBY 2,970,921

METHOD AND APPARATUS PoR CUTTING PAPER SHEETS Feb. 7, 1961 ssheets-sheet 1 Filed July 7, 1958 WNY ili.

Feb. 7, 1961 2,970,921 METHOD AND APPARATUS FOR CUTTING PAPER SHEETSFiled July 7, 1958 3 Sheets-Sheet 2 wf/vra? /WAX f. 705x /MVVqL Feb. 7,1961 Filed July 7, 1958 /26 f4 F1a-E- 47 M. E. TOBY METHOD AND APPARATUSFOR CUTTING PAPER SHEETS 3 Sheets-Sheet 3 TURA/EY;

United States Patent O METHOD AND APPARATUS FOR CUTTING PAPER SHEETS MaxE. Toby, San Francisco, Calif., assignor, by mesne assignments, to TobyEnterprises, San Francisco, Calif., a corporation of California FiledJuly 7, 195s, ser. No. 746,994

11 claims. (ci. 99-111) This invention generally relates to the art ofcutting paper sheets from a paper supply roll, and is more particularlydirected towards an improvement in a paper cutting and sheet feedingmechanism over that disclosed in my prior Patent No. 2,813,798, datedNovember 19, 1957, and entitled Method for Placing Paper Sheets BetweenSlices in a Stack.

In the above identilied patent, an apparatus and method was disclosedfor placing a cut sheet of paper between the slicesof a stack as thestack was being formed so that the finished stack would have a paperinsert between each slice thereof. While such apparatus possessednumerous features of advantage over prior art devices in that it couldbe utilized with high speed meat or cheese slicing equipment, itlikewise possessed certain operational diticulties. These difficultieswere primarily encountered due to the fact that small sheets of waxedpaper or the like are extremely difficult to handle, particularly whenattempting to cut off and then eject sheets of such paper from acontinuous feed or supply roll. The paper sheets, even if properly cutwhich in itself presents several problems, are very difficult to manage,`since the sheets are not form retaining and any free movement thereofresults in the sheet assuming uncertain air foil characteristics andmaking their control or movement most difficult. In addition to theforegoing, apparatus of this character heretofore available in the artran into difficulty in connection with the cutting of the sheets duringhigh speed movement, even though the paper roll or supply sheet washalted during the cutting operation.

It is therefore an object of the present invention to provide apparatusfor lcutting sheets from a continuous paper supply roll in which the cutsheet may be simply and readily deposited such as on a slice in a stackimniediately following the cutting operation and without requiringfurther handling of the cut sheet by the apparatus.

Another object of this invention is to provide an apparatus and methodof the character described in which the paper is positively clampedduring the` cutting action so as to insure a clean and sharp shearing ofthe paper to separate the sheet from the continuous roll thereof.

A further object of the invention is to provide apparatus of thecharacter described in which the sheet may be cut substantiallyimmediately at the end of the machine whereby `the trailing edge of thesheet may be substantially aligned with an edge of a slice depositedthereon, so that upon completion of the stacking and interleavingoperation, little, if any, paper will extend nbeyond the edges of theslices.

` A further object of the invention is to provide ap- "paratus ashereinabove described in which a fixed shear blade is used incombination with a movable shear blade for eecting severanceof the cutsheet, and in which at least one of said blades is of geenrally convexconldesired manner. from the roll thereof extends generally downwardlyin figuration and serrated along the length thereof whereby the paper isinitially engaged at only a. portion of its eventual line of severance.

Yet another object of the invention is to provide paper handlingequipment and apparatus as hereinabove characterized in which means areprovided for producing a pleat or fold in the paper so that it may beextended from the apparatus prior to cutting thereof in a generallyplaner rigid condition whereby upon being cut it may then gravitally bedeposited on lthe slices in a stack or elsewhere.

A still further object of this invention is to provide a machine of thetype referred to in which the paper, including the sheet, is at alltimes positively controlled, and in which the sheet is cut from thepaper supply strip substantially immediately prior to, or just as aslice engages the same` The invention possesses other objects andfeatures of advantage, some of which with the foregoing, will be setforth in the following description of the preferred form of theinvention which is illustrated in the drawings accompanying and formingpart of the speeltication. It is to be understood, however, thatvariations in the showing made by the said drawings and description maybe adopted within the scope of the invention as set forth in the claims.

Referring to said drawings:

Figure l is a front elevational view of the apparatus of the presentinvention.

Figure 2 is a top plan view thereof.

Figure 3 is a side elevational view of the apparatus.

Figure 4 is a vertical cross sectional view taken substantially in theplane indicated by line 4 4 of Figure 1, but shown on an enlarged scale.

Figure 5 is a view similar to Figure 4 but illustrating the shearelements in operative engagement.

Figure 6 is an enlarged vertical cross sectional View takensubstantially in the plane indicated by line 6--6 of Figure 1 andillustrating the paper advance clutch mechanism.

Figure 7 is an enlarged vertical cross sectional view takensubstantially in the plane indicated by line 7-7 of Figure l1 andillustrating the master clutch mechanism for the apparatus.

As hereinabove set forth, the apparatus of the instant inventionconstitutes an improvement over my prior patent No. 2,813,798. However,in order to better explain the novel features of the instant invention,a large portion of the mechanism disclosed in said prior patent islikewise disclosed herein so as to provide a proper environment for thenovel sheet handling and cutting means which will be hereinafterdescribed in detail.

Referring first to the general over-all mode of operation, the apparatusshown in the accompanying drawings will be seen to include a papersupply roll, means for advancing the paper, and means for creating atension on the paper during its intermittent movement to- Awards thesheet cutting mechanism. All of these general features are disclosed inmy prior patent with slight structural modifications, and the importantnovel features of the instant invention are best disclosed in Figures 4and 5 of the drawings, although certain of the other views likewisedisclose portions of such features.

As to the more conventional portions of the apparatus, reference may bemade to my prior patent as well as to the instant drawings whichdisclose a roll of paper 12 of the desired width operatively mounted ona shaft or mandrel 13, such shaft being suitably journaled in brackets14 mounted on a supporting frame 15 in any The end o-f the paper as itis unwound the form of a strip 20r to pass around, a paper tensioningroller 16. Roller 16 is carried adjacent the end of an arm 17 whoseother end is fixed to a' freely journaled shaft 18, the latter beinglikewise rigidly secured to an arm 19 which is normally 'urged in aclockwise direction as viewed in Figure 3 of the drawings by Ia tensionspring 21 secured to a frame portion 22. rl`his arrangement insures thestrip 20 having a relatively constant pull thereon during all phases ofthe advancing and cutting cycle. Also, to prevent over-running of thespool or roll of paper, one end of the shaft 13 is provided with aradially enlarged hub 24 around which a tension strap 26 is operativelypositioned, the ends of such strap being anchored in any suitable mannerto the frame.4 The paper strip after engaging the tensioning roll 16passes upwardly subjacent a guide roll Z8 and then over a preferablyrubber coated guide roll 29 from which it then passes between a pair ofclosely adjacent feed rollers 31 and 32 respectively, the latter beingdisposed generally above and forwardly of the guide rolls. Then, as willbe hereinafter explained in more detail, the paper strip is caused topass between two vertically aligned adjacent creasing rollers 33 and 34before being ejected from the apparatus, the exact construction of thesecreasing rollers being likewise more fully explained hereinafter. in anyevent, after passing through the rollers 33 and 34, cutting mechanism,generally indicated at 36 is utilized to sever the individual pieces ofpaper from the strip thereof, and such cutting is arranged so that uponthe shearing of the piece, the latter may immediately gravitally fallonto the individual slices in a stack or be assisted in its downwardmovement by having a new slice deposited thereon.

The paper is adapted to be intermittently advanced so that the cuttermechanism 36 will be actuated only during stoppage of the paper stripmovement. Consequently, the paper drive rolls 31 and 32 are likewiseadapted for intermittent rotation, and as seen in Figure 4 of thedrawings the roll 32 is intermittently rotated in a counter-clockwisedirection whereas the roll 31 will be similarly rotated, but in aclockwise direction, so as to effect forward movement of the paper stripthrough the rolls and towards the cutting mechanism. To accomplish theforegoing, the rolls 31 and 32 are carried on shafts 41 and 42respectively and if desired, suitable means may be provided forselectively varying the clamping pressure exerted by the rolls on thepaper passing therebetween. Shaft 41 adjacent one of the ends thereof isprovided withy a pinion gear 43 which is driven by a gear 44, andthelatter in turn is driven by a drive gear 46. By intermittentlyrotating drive gear 46 in a single direction, it will be appreciatedthatgear 43 will likewise be intermittently driven and s o as to insurelsynchronism between the rolls 31 and 32 shaftv 42A is provided wlth agear 47 which is in mesh with gear 43 and ywhich is driven by thelatter.

Means are also provided for driving the crimping orV creasing rolls 33and 34 in synchronism with the drive rolls 31 and 32. This may b esimply effected by taking rotary motion from the paper drive roll gear43 such as by means :orf an idler gear 40 in mesh with gear 43, theidler gear in turn driving a gear 45 secured to the shaft carrying thelower creasing roller, the gear of the upper pleating roller being inturn driven by the gear 45.

Means are provided for imparting unidirectional intermittent rotation todrive gear 46 and as best seen in Figure 3 of the drawings, such meanswill be seen to include a segment gear 48, in engagement with gear 46and journaled for oscillating movement on a shaft 49.

Driving power is supplied to segment gear 48 through a link 51, theupper end of which is pivotally secured to a portion of the segment gearadjacent an end thereof,

the, other end of the link being plvotally attached to one end of arocker arm 52. The other end of thev rocker arm, isuivoted, to an.adjustable beu crankv 53 and an intermediate portion of the rocker armis slotted to slidably receive a block 54 to which is pivoted a crank S6which is driven by the slicer or other apparatus with which theinterleaver is used. Thus, in the present environment, the crank isadapted to be synchronized with the slicer, and is timed to make onecomplete revolutionfor each slice of meat that is deposited on theplatform. ln accordance with the foregoing, the segment gear 48 willrotate about its shaft 49 in a counterclockwise direction for somewhatover half the rotation of crank 56, and then in a clockwise directionfor the remainder of the rotation. However, the arc of travel of thesegment gear will be equal in lboth directions of rotation and only therate of rotation will be varied.

Since it is only desired to advance the paper strip to the right asviewed in Figures 3, 4 and 5, this, of course, requires unidirectionalnotation of `the drive rolls 31 and 32, and the desired direction ofrotation, as will be evident from a study of the gear train, will takeplace only upon counterclockwise rotation of segment gear 48.Consequently, in order to disengage the effect, of clockwise rotation ofgear 48 from imparting similar contrarotation to the drive rolls, 1afriction clutch 57 may be incorporated with the gear 46. Briey, gear 46is mounted on a common shaft 58 with the friction clutch 57 and thelatter will be seen to include a disc 59 on the inner surface of whichis plvotally mounted a plurality of blocks 63. A clutch housing 61 iskeyed to shaft 58 in any suitable manner and one or more rollers 62 aredisposed within the clutch housing, and as the gear 46 is rotated in aclockwise direction the rollers will bewedged between adjacent blocksand portions of the housing 61 causing the clutch elements andaccordingly the shaft 58 to revolve together. The rollers 62 arenormally urged outwardly by springs' 64 and during clockwise rotation ofthe segment gear `48-.the roller is freed from its binding engagementbetween the blocks 63 and housing 61 so ias to permit the clutch element59 to move independent of the shaft." In order to provide movement tothe crank 56 and its associated shaft 71, the latter is provided with aiioat# mg pinion gear 72 operatively engaged with a gear 73 carried on ashaft 74 which is driven by the slicer or other apparatus, preferablythrough a Vplanetary gear arrangement generally indicated at 76, andadapted to permit micrornatic timing adjustmenty of the apparatus so asto synchronize the cutting of the sheets with the slicer operation whilethe apparatus is in motion. To provide for such 4adjustment shaft 71maybe rotated by a manually operable sprocket 77 which is connected to achain 78'whichin turn is engageable with a Wormv79 engageable with aworm gear S1 carried on the shaft 7.4'. Since the shafts 74 and 71 willbecontinuously rotating, means are provided for'halting oscillation ofthe segment gear 48 after a predetermined number ofsheets have beensevered from the strip, corresponding to the format1on of a stack. Suchmeans include a clutch mechanism best illustrated in Figures 1 and 7 ofthe drawings. As

viewed in Figure 1, the clutch mechanism may be said to include a lefthand clutch portion 86 which may be secured to gear 72 and likewisefreely journaled on shaft 71. A right hand clutch portion `87 is keyedto shaft 71 and upon operative engagement of the clutch portions 86 and87 shaft 71 will be caused to rotate. The portions are provided withclutch teeth which are normally urged together by spring means (notshown) and means are provided for selectively placing' the clutchelements into and out of engagement upon receiving proper impulses froma slicer orother mechanism. This may be accomplished by utilizing asolenoid 88 which, upon slicer operation is energized, causing thesolenoid arm 89 to move upwardly as viewed in Figure l of thev drawings.A pair o f links 9'1 are pivotally attached to the, lower end of; thesolenoid arm and the other ends are pivotedV to a corner www q' en of apair `of bell cranks in the form of triangular plate members 92. A fixedpivot 93 at another corner of the bell cranks is suitably journaled to aportion of the frame and a third pivot at another corner of the bellcranks and substantially below the fixed pivot thereof is attached to apair of links 94, the ends of which are pivotally secured to a block 96.A fixed pivot 95 passes through the left hand end portion of the blockand is likewise journaled in the frame. `The right hand end portion ofthe block carries a lug 97 that engages a pin 93 mounted on the righthand clutch portion 87. Consequently when the solenoid is energized andthe arm retracted, the foregoing arrangement will rotate the lug aboutthe fixed pivot away from pin 98 permitting the right hand clutchportion to be forced into engagement with the left hand clutch portionthrough the action of its springs. Upon de-energization of the solenoid,such as when an impulse is received that the slicer has ceasedoperation,the solenoid arm 89 will be extended and the linkage arrangement resultsin the lug bearing against the clutch pin forcing the clutch portionsapart andhalting further rotation to shaft 71 and likewise halting papersheet advance until the solenoid is again energized.

The foregoing description represents portions of the apparatus which aregenerally disclosed in my previously discussed patent. Now, referencewill be had to the mechanism for controlling the end portion `of thestrip and for effecting the cutting thereof. As was previouslyexplained, the paper strip after passing through the feed rolls 31 and32 and the creasing rolls 33 and 34 is adapted to be severed to apredetermined length.' Normally, it would be assumed that the simpestway to effect a transverse shear to the strip would be to supportopposed portions of the strip on opposite sides of the line ofseverance. However, such an arrangement presents problems due to thedifficulty of thereafter attempting to advance the cut portion of thestrip which were encountered with the apparatus disclosed in my priorpatent. Therefore, in accordance with the teachings of the presentinvention the strip is cut only after the desired length of the cutsheet has already been extended from the machine. As here illustrated,immediately forwardly of or to the right of the rollers 33 and 34 lprovide a horizontal support member or plate 101 which is adapted tounderlie thelpaper'after emerging from the rolls 33 and 34. The strip ofpaper, prior to its being cut, will extend beyond 'the apparatus for thelength of the desired cut sheet, the cuttingthen occurring at the distalend of the member 101 so as to permit the extended sheet portion 102 togravitally fall downwardly such as immediately under a slice of material`just having been cut from a slicer blade 103. Since waxed paper orother commonly used paper products do not possess suliicientrigidity orstability `to permit them to be cantilevered outwardly and retain agenerally planar configuration, umeans are provided to permitthe paperto `be horizontally extended as shown in Figure 3 without unduedeformation so as to permit the subsequent cutting thereof by the cuttermechanism 36. The foregoing is accomplished by means of the verticallysuperimposed rollers 33 and 34 which, as illustrated in Figure 2 of thedrawings, each include a plurality of roller members carried on a commonshaft. A central roller 106 is of cylindrical configuration and merelyserves as a support for the center portion of the paper strip. A pair ofouter rollers 107 mounted on each of the shafts are disposed adjacentthe longitudinally extending edges of the strip and each of the rollers107 on one of the sets have a portion thereof inwardly grooved toreceive a projection on the other sets. When the two complementaryrollers 33 and 34 are urged together such as under the influence ofspring 112, the paper will'be creased or grooved adjacent each of itsedges and will therefore resist deformation when extended beyond thc endof the support plate 101 and maintain the same in condition forseverance.

After the paper strip has been advanced to where the pleated or groovedstrip 102 will extend beyond the base portion, and during the clockwiseor inoperative cycle of rotation of segment gear 48, the paper istransversely cut immediately adjacent the outer end of plate 101. Thecutting is preferably accomplished in the following manner. lt will benoted that the plate 101 is preferably formed of rubber or like materialand is suitably supported on a rigid plate 113, the latter being carriedat the upper end of a pair of spaced vertical shafts 114 which extendsthrough apertures in a fixed frame portion 116. The lower end of eachshaft is provided with an enlarged nut 117 or the like so as to preventits upward removal through the frame aperture and define the uppermostposition of plate 101. A compression spring 118 is provided between theupper surface of frame portion 116 and the lower surface of a fixedplate member 119 through which the shaft 114 likewise extends. In thismanner, it will be appreciated that the paper support 101 may upondownward pressure being applied thereagainst move downwardly against theresistance of spring 118, the latter serving as a yieldable support forthe plate. The xed plate 119 adjacent the outer end thereof is providedwith a fixed shear blade 121 which extends upwardly to substantially thenormal upper surface of the support 101. By referring ,to Figure 1 ofthe drawing the fixed shear blade has the upper edge portion thereofserrated as indicated at 122, and as an important feature of theinvention the blade has a generally convex arcuate longitudinal extentwith the maximum blade height being adjacent the central portion thereofand a minimum height adjacent the ends thereof. The purpose of thisarcuate configuration will be hereinafter discussed in greater detail.It is also important to note that the rubber plate or cushion 101, inits normally raised position, extends above the serrations of blade 121and serves to guide the forward movement of the paper past such bladewithout interference. In addition to the fixed blade 121, a movablecombination clamp and shear 123 is utilized to cooperate with the plate101 and the fixed blade 121 in effecting the transverse severance of theextended strip portion 102 from the remainder of the paper strip. Thismovable shear blade 123, as in, the case of the fixed blade 121, extendstransversely of the paper strip for the width of the apparatus and hasits inner edge mounted generally tangentially on stub shafts 124 onopposite sides of the apparatus. Upon oscillation of the stub shafts,the blade 123 will be caused to move selectively from and towards thepaper support 101 and upon the downward movement thereof will cooperatewith the fixed blade 101 in effecting a complete severance of the paper.during the clockwise rotation of the stub shaft 124 as viewed in Figures4 and 5 of the drawing, that is, movement of the shear blade towards itslower position illustrated in Figure 5, will result in the paper stripbeing uniformly clamped against the yieldable support 101 for the entiretransverse extent of the strip, and after such clamping has occurred andplate 101 moved downwardly to expose the serrations of blade 121,continued movement of shear blade 123 will result in the severance orshearing of the strip initially at the central portion of the strip andthence outwardly towards the edges thereof.

In order to effect the necessary oscillatory motion to the stub shafts124, it will be noted in Figure 1 that one of the stub shafts is securedto an end of a crank 126, which is operatively connected to a link 125which 'is driven by shaft 71 through a crank 127 so that during normalactuation of the apparatus the link 125 will be oscillated impartinglike oscillation to the stub shaft and the shearing element 123 carriedthereby.

It should also be pointed out that notwithstanding the resilientpressure imparted on substantially all portions of the strip just priorto the cutting operation, the por- In this connection it is important tonote that tion of the strip immediately rearwardly of the clamping andshearing mechanism will have already passed through the crimping rolls33 and 34 so that upon the next advance of the paper, a sufficientamount of crimp will be retained in the strip adjacent the fixed shearblade 121 so as to insure the generally horizontal disposition of theextended paper portion M2. prior to the next actuation of the cuttermechanism, and at most, only the distal end of the strip will have thecrimp removed by the pressure created between the shear 123 and plate101.

What is claimed is:

l. A method of delivering paper sheets to a common discharge area whichincludes intermittently advancing a paper strip towards said dischargearea, physically supporting a portion of said strip in a generallyhorizontal plane, producing a longitudinal crease in said strip,cantilevering the creased strip portion beyond the supported portion ofthe strip, resiliently clamping said strip along a transverse pathbetween said extended and supported strip portions, and thentransversely cutting said strip along said path while the strip is beingclamped.

2. The method as set forth in claim l further characterized by saidcutting first occurring adjacent the center portion of the strip andthence outwardly towards the strip edges.

3. A method of interleaving paper sheets between adjacent slices of afood product during formation of a vertical stack of such siices whichcomprises feeding a paper strip towards the slices from a paper supplyroll, intermittently pulling on an unrolled portion of said strip so asto advance the latter towards said slices in timed relation to thereception thereof, supporting said strip adjacent said slices, extendingand cantilevering the end portion of said strip over the last depositedslice and in a generally horizontal position, and then resilientlytransversely clamping and cuttingT such end portion from the strip uponstoppage of the intermittent pulling to provide a cut paper sheet.

4. A method as set forth in claim 3 in which said end portion of thestrip is creased longitudinally prior to its extension over the lastdeposited slice whereby such portion may maintain its horizontaldisposition prior to the clamping and cutting thereof.

5. In apparatus for cutting sheets from a continuous paper strip, a pairof strip drive rolls, means intermittently rotating said rolls foreffecting intermittent advance of said strip, a resilient paper supportmember positioned forwardly of said drive rolls and adapted to support aportion of said strip, a fixed shear element positioned forwardly of andsubjacent said member, a movable shear element overlying lsaid memberand said iixed shear element, and means moving said movable shearelement downwardly into paper clamping engagement with said member andurging the latter downwardly to expose and move into shearing engagementwith said fixed shear element uponv stoppage of rotation of said driverolls where-v by the strip portion extending forwardly of said supportmember will be cut from the stripto provide a papel` sheet.

6. Apparatus as setforth in claim 5 in which oner of said shearelementsl is provided with a plurality of serrations extending along thelength thereof.

7. Apparatus of the character described including a paper supply roll, apair of paper strip advancing rolls, means intermittently rotating saidlast named rolls, a. generally horizontally disposed resilient papersupport member, a fixed shear blade positioned adjacent the end of saidmember, a superimposed movable shear blade overlying said member andsaid fixed blade, means moving said movable blade into clampingengagement with said member and into shearing engagement with said fixedblade upon halting of rotation of s aid advancing rolls, and paper stripcreasing means positioned intermediate said strip advancing rolls andsaid member for producing a longitudinally extending crease in saidstrip prior to the cutting thereof.

8. Apparatus as set forth in claim 7 in which said creasing meansincludes a pair of bevelled rollers positioned adjacent each edge ofsaid strip and between which said strip is engaged for creasing thereby.

9. Apparatus for cutting sheets from a continuous paper strip, includinga pair of strip drive rolls, means intermittently rotating said rollsfor advancing said strip, a horizontally disposed paper support memberpositioned adjacent the discharge end of said apparatus, spring meansresiliently maintaining said member in an upper position, a fixed shearelement positioned adjacent the end of said member and having an upperedge portion below the upper surface of said member when the latter is,in said upper position, a movable shear element overlying said memberand said fixed shear element, means reciprocating said movable elementbetween a first position spaced from said member and said fixed elementwhereby the paper strip may be advanced therealong toA extend beyondsaid fixed shear element and a second position wherein said movableelement has first moved against said member to clamp the striptherebetween and then further moved to cooperate with said`fixed elementto transversely shear the strip.

l0. Apparatus as set forth in claim 9 including a pair of strip creasingrollers disposed intermediate said drive rolls and said member, andmeans rotating said creasing rollers in synchronismwith said driverolls.

ll. Apparatus as set forth in claim 9 in which said member is formed ofresilient material.

References Cited in the tile of this patent UNITED STATES PATENTS TobyNov. 19, 1957

3. A METHOD OF INTERLEAVING PAPER SHEETS BETWEEN ADJACENT SLICES OF AFOOD PRODUCT DURING FORMATION OF A VERTICAL STACK OF SUCH SLICES WHICHCOMPRISES FEEDING A PAPER STRIP TOWARDS THE SLICES FROM A PAPER SUPPLYROLL, INTERMITTENTLY PULLING ON AN UNROLLED PORTION OF SAID STRIP SO ASTO ADVANCE THE LATTER TOWARDS SAID SLICES IN TINNED RELATION TO THERECEPTION THEREOF, SUPPORTING SAID STRIP ADJACENT SAID SLICES, EXTENDINGAND CANTILEVERING THE END PORTION OF SAID STRIP OVE THE LAST DEPOSITEDSLICE AND IN A GENERALLY HORIZONTAL POSITION, AND THEN RESILLIENTLYTRANSVERSELY CLAMPING AND CUTTING SUCH END PORTION FROM THE STRIP UPONSTOPPAGE OF THE INTERMITTENT PULLING TO PROVIDE A CUT PAPER SHEET.